Noise

The following sound examples are some types of 'background noise' that
can be added to other sounds to simulate real-world conditions. It
seems a little hopeless to try and enumerate all the possible kinds of
noise that might be encountered - in general, noise refers to anything
unwanted, which could be, well, anything. However, noise robustness
is such an important consideration that various efforts have been made
to assemble collections of 'typical' noise backgrounds.

The examples below are based on the ones constructed for the AURORA
noisy speech evaluation. Each example is 10 seconds long, and is
sampled at 8 kHz.